I just got my ring in the mail today. I installed the app and when I attempt to register my ring it asks for my email and password (x2). I enter them but am told the email address is already in use. I don't see anywhere to enter to code which is moot, anyway, as I don't seem to have an email with any activation code in it.
Having the same issue and don't have an email with a verification code. NFC Ring support directed me here rather than re-sending my verification code. When I tried to reset the code, their site said changing my password worked yet when I get back into the app, I get an "Error 202 Username already taken".
Any help here from the creators or others who have figured out this issue will help us. Thank you.